This is a fun question to answer. Leere has had plenty of relationships, be them partnerships trying for love or to passion filled hookups, or friends with benefits that turned into simply friends.
Growing up, Leere always had crushes, but never truly pursued them outside the odd kiss with someone her age. Although her parents loved her for who she was, there was still nobility that didn't approve of pansexuality. Having gone over to Danjur for study in her early twenties, Leere found herself exploring multiple avenues. Nothing would stick with the parties she went to, but she was able to find her kinks, her preferences, and her tolerances.
After graduating, Leere would travel and engage in hookups if the mood struck her, such as with the Matriarch Fayruz. Between her 20's-50's, however, Leere felt she was struck with a curse. Any relationship she tried to stick with long term, man or woman, would lead to the death of her partner in terrible accidents on her adventures.
When she discovered the Hive organization under Hyrule, Leere felt comfortable leading a life of excess partying and lust in the company of those who she felt couldn't be harmed so easily. This lead to FWB's with the arachnid twins Blue and White, and a much closer relationship with Bonegrinder. Although never official, and still on friendly terms, Leere hasn't disputed Ralnor calling the Echidnian an ex.
After going through rehab and cutting her more lustful aspects of her relationship with the Hive, Leere found the love of her life in Sunny Ingo. The two now live happily married and have a daughter.
Crushes Leere has fanaticized about are Zarazu, Zolori, her Deku band mate who respectfully shot her down, and after seeing old pictures of her and hearing stories, Midna.